201211181 六、發明說明： c發明所屬之技術領域3 發明領域 本發明涉及一種丙烯酸類黏合劑組合物和包括該丙烯 酸類黏合劑組合物的偏光膜。更具體地，本發明涉及包括 由烷基、羥基和呋喃類基團封端以防止漏光的丙烯酸類共 聚物的丙烯酸類黏合劑組合物，和包括所述丙烯酸類黏合 劑組合物的偏光膜。 【先前技術3 發明背景 偏光片是用於液晶顯示器(LCD)的光學元件。偏光片包 含以固定方向排列的碘類化合物或二色性偏光材料。偏光 片具有多層結構*保護膜形成在偏光片的兩側以保護偏光 膜或其它元件。 構成偏光片多層結構的各個膜由具有不同分子結構和 組成的材料組成。因此，偏光片的各個膜顯示出不同的物 理性質。特別是當光學膜在高溫、高濕條件下長期使用時， 光學膜尺寸變化引起的内應力集中在光學膜的邊緣而非中 心，引起漏光現象，在此現象中液晶裝置的邊緣比其中心 更亮。 已建議採用各種黏合劑組合物來防止漏光。例如，已 建議採用使用丙烯酸類黏結劑的黏合劑組合物，此丙烯酸 黏性黏結劑包括丙稀酸丁自旨作為主要成分且僅由烧基封 端，以最大程度釋放應力。具體地，製備分子量為 3 201211181 1’500,000〜2,000,000咖〇1的丙烯@曼_結劑，並使用少量 熱固劑使塗層膜_性最大。然而’僅由烧基封端的丙稀 西文類黏結劑在熱或熱濕條件下無法確保完全防止漏光。 此外，偏光膜用的常規黏合劑組合物通常包括丙烯酸 類黏結劑、異氰酸醋熱固劑和矽烷偶聯劑。加入矽烷偶聯 劑以改進與玻璃基板的黏合強度。然而，當加入極少量石夕 烷偶聯劑時’在混合時易出現問題。此外，在不易進行搜 拌的情況下’黏合劑組合物的黏合強度在偏光膜形成後變 得不均勻。 C發明内容3 發明概要 本發明的一個方面提供了一種黏合劑組合物，包括： 具有至少一個烧基、至少一個經基和至少—個呋喃類基團 作為端基的丙稀酸類共聚物；和固化劑。 所述丙烯酸類共聚物可通過(al)具有烧基的（甲基）丙 烯酸烷基酯、（a2)具有羥基的（甲基）丙烯酸酯和(a3)具有咬 喃類基團的化合物共聚獲得。 所述丙烯酸類共聚物可通過(al)約6〇~98wt%的所迷（甲 基）丙烯酸烷基酯、（a2)約l~10wt%的所述（甲基）丙稀酸鳴和 (a3)約卜30wt%的所述化合物共聚獲得。 所述吱喃類基團可為呋喃基、四氫呋喃基、糠基气四 氫糠基。 所述丙烯酸類共聚物可進一步由具有矽烷基的單體共 201211181 所述丙烯酸類共聚物可進一步由具有醯亞胺基的單體 共聚。 所述丙烯酸類共聚物可進一步由具有羧基的單體共 聚。 所述丙烯酸類共聚物可具有約800,000~ 1,500,000 g/mol的重均分子量。 所述丙烯酸類共聚物可具有約2~10的多分散指數。 所述黏合劑組合物可進一步包括(C)矽烷偶聯劑。 本發明的另一方面提供一種包括所述黏合劑組合物的 偏光膜。 【實方方式3 較佳實施例之詳細說明 現將詳細地描述本發明的實施方式。 本發明的一個方面提供了一種黏合劑組合物，包括： (A)具有至少一個烷基、至少一個羥基和至少一個呋喃類基 團作為端基的丙烯酸類共聚物；和(B)固化劑。 丙烯酸類共聚物 丙烯酸類共聚物可具有至少一個烷基、至少一個羥基 和至少一個呋喃類基團作為端基。 在丙烯酸類共聚物中，作為端基的烷基、羥基和呋喃 類基團的位置無特別限制且可根據需要做適當改變。此 外，在丙烯酸類共聚物中，作為端基的烷基、羥基和呋喃 類基團可連續排列。 丙烯酸類共聚物可通過(al)具有烷基的（甲基）丙烯酸 201211181 烷基酯、（a2)具有羥基的（曱基）丙烯酸酯和(a3)具有呋喃類 基團的化合物共聚獲得。 在一個實施方式中，丙烯酸類共聚物可通過(al)約 60〜98wt%的所述（曱基）丙烯酸烷基酯、（a2)約1〜l〇wt%的所 述（甲基）丙烯酸酯和（a3)約l~30wt%的所述化合物共聚獲 得。 在另一個實施方式中，丙烯酸類共聚物可通過(al)約 65~85wt%的所述（甲基）丙烯酸烷基酯、（a2)約5〜l〇wt%的所 述（甲基）丙烯酸酯和(a3)約10~25wt%的所述化合物共聚獲 得。 具有烷基的（曱基）丙烯酸烷基酯在酯部分中可包括具 有1至20個碳原子的直鏈或支鏈烷基的（甲基）丙烯酸烷基 酯。例如，（曱基）丙烯酸烷基酯在酯部分中可包括具有2至 12個碳原子，優選3至8個碳原子的直鏈或支鏈烷基的（甲基) 丙烯酸烷基酯。 例如，具有烷基的（曱基）丙烯酸烷基酯非限制性包括選 自由（曱基）丙烯酸甲酯、（甲基）丙烯酸乙酯、（甲基）丙烯酸 丙酯、（甲基）丙烯酸異丙酯、（曱基）丙烯酸正丁酯、（甲基) 丙烯酸叔丁酯、（甲基）丙烯酸異丁酯、（甲基）丙烯酸仲丁 酯、（甲基）丙烯酸戊酯、（甲基）丙烯酸己酯、（甲基）丙烯酸 庚酯、（甲基）丙烯酸辛酯、（曱基）丙烯酸壬酯、（曱基）丙烯 酸癸酯、（甲基）丙稀酸Η 酯和（甲基）丙稀酸月桂酯組成的 組中的至少一種。例如，具有烷基的（甲基）丙烯酸烷基酯非 限制性包括選自由（曱基）丙烯酸甲酯、（甲基）丙烯酸乙酯、 201211181 . (曱基）丙烯酸丙酯、（甲基）丙烯酸異丙酯、（曱基）丙烯酸正 丁 S曰、（曱基）丙稀酸叔丁 g旨、（甲基）丙稀酸異丁 g旨 '(甲基) 丙烯酸仲丁酯、（甲基）丙烯酸戊酯、（曱基）丙烯酸己酯、（甲 基）丙烯酸庚酯和（甲基）丙烯酸辛酯組成的組中的至少一 種。 將共聚到丙烯酸類共聚物中的具有烷基的（甲基）丙烯 酸烷基酯在丙烯酸類共聚物中的含量可為約6〇〜98 wt%。在 此範圍内時，黏合劑組合物顯示出優異的初始黏合強度， 因此防止膜在可靠性測試時在其邊緣剝落。此外，在再加 工工藝中不發生黏滑(stick slip)，因此有利於再加工。此 外，在切割工藝中，黏合劑組合物提供優異的可加工性而 不用省略黏結劑。在一個實施方式中，將共聚到丙烯酸類 共聚物中具有烧基的（曱基）丙烯酸烷基酯在丙烯酸類共聚 物中的含量可為約65〜85wt%。 具有羥基的（甲基）丙烯酸酯沒有具體限制，只要其在酯 部分或其結構中的末端位置具有羥基，並能與具有烷基的 (曱基）丙烯酸烷基酯或具有呋喃類基團的化合物共聚。例 如’具有羥基的（甲基）丙烯酸酯可包括具有丨至2〇個碳原 子’優選1至10個碳原子，更優選在酯部分含有羥基的2至6 個碳原子的直鏈或支鏈烷基的（曱基）丙烯酸烷基酯。 例如’具有羥基的（曱基）丙烯酸酯非限制性包括選自由 (甲基）丙烯酸-2-羥乙酯、（甲基）丙烯酸_4_羥丁酯、（曱基） 丙稀酸_2-羥丙酯、（曱基）丙烯酸-2-羥丁酯、（曱基）丙烯酸-6-經己醋、丨，4-環己烷二曱醇單（曱基）丙烯酸酯、1-氣-2-羥丙 201211181 2- 基（甲基)丙烯_、二乙二料（甲基)丙雜旨、^己二 _甲基)丙烯㈣、季戊四醇三（曱基)丙細旨、二季戍 ^五（曱基)丙馳S|、新戊二醇單（曱基)丙稀義、三經 基丙烧二（甲基）丙稀酸酷、三經甲基乙烧二（甲基）丙稀酸 酉曰、2-經基-3-苯氧基丙基（曱基)丙稀酸Κ經基環己基（甲 土）兩烯lSa 2-經基_3·苯氧基（曱基)丙烯酸§旨、4經基環 、土（曱基）丙烯W和環己烧二甲醇單（甲基）丙烯酸醋組 成的組中的至& —種。特別是，最優選具有在S旨部分含有 經基的2至6個碳原子的直鏈或支鏈院基的（甲基）丙烯酸烧 基略’例如’選自（曱基)丙晞酸-2-經乙酿、（曱基)丙稀酸-4-私丁醋、（曱基)丙稀酸_2•經和旨、（曱基）丙烤酸_2經丁醋 和（甲基）丙烯酸-6-羥己酯中的至少一種。此外，可使用 經乙基（甲基）丙稀醯胺來代替具有經基的（甲基）丙稀酸酯 將共聚到丙烯酸類共聚物中的具有羥基的（甲基）丙烯 酉文酯在丙烯酸類共聚物中的含量可為約丨〜川糾％。在此範 圍内時，丙烯酸類共聚物顯示出優異的交聯，這減少了黏 合劑膜的切割工藝期間的毛邊以及在再加工時向玻璃基板 轉移，因此提供優異的初始黏合強度。在一個實施方式中， 將共聚到丙烯酸類共聚物中的具有羥基的（曱基）丙烯酸酯 在丙烯酸類共聚物中的含量可為約5~10wt%。 具有呋喃類基團的化合物沒有具體限制，只要其具有 呋喃類基團’且能與(al)具有烷基的（曱基）丙烯酸烷基酯或 (a2)具有羥基的（曱基)丙烯酸酯共聚。或者，具有呋喃類基 團的化合物沒有具體限制，只要其具有呋喃類基團，且能 201211181 與(a2)具有羥基的（曱基）丙烯酸酯的羥基偶聯。 °夫喃類基團可為呋喃基或改性的吱喃基，如四氫吱喃 基、糠基或四氫糠基。在一個實施方式中，所述呋喃類基 團為四氫。夫喃基。 具有呋喃類基團的化合物非限制性包括異氰酸糠酯、 異氰酸四氫糠酯、丙酸糠酯、丙酸四氫糠酯、戊酸四氫糠 酯或戊酸糠酯。具有呋喃類基團的化合物可具有以下通式 3 ： 〈通式3> CH2=CR-C(=0)0-R1 其中，R為-Η或-(CH2)n-CH3 ; η為0至5的整數；且R1 為呋喃基、四氫呋喃基、糠基或四氫糠基。 通式3所示化合物的實例可包括（曱基）丙烯酸糠酯或 (甲基）丙烯酸四氫糠酯。具有呋喃類基團的化合物的一個實 例包括（曱基）丙烯酸四氫糠酯。 將共聚到丙烯酸類共聚物中的具有呋喃類基團的化合 物的含量可為約l~30wt%。在此範圍内，即使在90%的相對 濕度和60°C或85°C下保持250小時後，該黏合劑組合物也顯 示出優異的而ί熱性，且也不引起漏光。在一個實施方式中， 將共聚到丙烯酸類共聚物中的具有呋喃類基團的化合物的 含量可為約10~25wt%。 除包括至少一個烷基、至少一個羥基和至少一個呋喃 類基團作為端基外，丙烯酸類共聚物還可進一步包括選自 由矽烷基、醯亞胺基和羧基組成的組中的至少一種作為端 201211181 基。 在一個實施方式中，丙烯酸類共聚物可包括至少一個 烷基、至少一個羥基、至少一個呋喃類基團和至少一個矽 烷基作為端基。本文中，術語“矽烷，，或“矽烷基”是指矽烧 (SiH4)或具有1至3個取代基的矽烷，如画素取代或C1_C^ 鏈或支鏈烷氧基取代的矽烷。 在丙烯酸類共聚物中，作為端基的烷基、羥基、呋喃 類基團和矽烷基的位置無特別限制且可根據需要做適當改 變。此外，在丙烯酸類共聚物中，烷基、羥基、呋D南類基 團或矽烷基可連續排列。 丙烯酸類共聚物可通過具有矽烷基的單體以及(al)具 有烷基的（甲基）丙烯酸烷基酯、（a2)具有羥基的（甲基）丙烯 酸酯和(a3)具有呋喃類基團的化合物共聚獲得。具有矽烷基 的單體沒有具體顯示，只要其具有矽烷或矽烷基，並能與 具有羥基的（甲基）丙烯酸酯的羥基偶聯。在一個實施方式 中，具有矽烷基的單體可通過異氰酸酯部分與具有羥基的 (甲基）丙烯酸酯的羥基偶聯。 具有矽烷基的單體非限制性包括選自由3-異氰酸基丙 基三曱氧基矽烷、3-異氰酸基丙基三乙氧基矽烷、乙烯基 三氣矽烷、乙烯基三甲氧基矽烷和乙烯基三乙氧基石夕烧組 成的組中的至少一種。在一個實施方式中，具有矽烷基的 單體為3-異氰酸基丙基三乙氧基矽烷。 基於100重量份的丙烯酸類共聚物’將共聚到丙烯酸類 共聚物中的具有矽院基的單體的含量可為約0.01〜5重量 10 201211181 黏合劑組合物顯示 類共聚物的優異存 份，優選約1~4重量份。在此範圍内時， 出與玻璃基板的優異黏合強度和内烯酸 儲穩定性。 至少一 和至少一個 在另一個實施方式中’丙烯酸類共聚物可具有 個烷基、至少一個羥基、至少一個呋喃類基團 酉蓝亞胺基作為端基。 在丙烯酸類共聚物中’作為端基的境基、声其。 類基團㈣亞胺基的位置無特別限社可根據^做^ 改變。此外，在丙烯酸類共聚物中，烷基、羥基、呋喃= 基團或醯亞胺基可連續排列。 丙烯酸類共聚物可通過具有醯亞胺基的單體以及(al) 具有烷基的（甲基）丙烯酸烷基酯、（a2)具有羥基的（甲基）丙 婦酸酯和(a3)具有吱喃類基團的化合物共聚獲得。具有醯亞 胺基的单體可非限制性包括選自由馬來酿亞胺、苯基馬來 醢亞胺、N-甲基馬來醯亞胺、N-乙基馬來酿亞胺、N·丙基 馬來醯亞胺、N-異丙基馬來醯亞胺、N-丁基馬來醯亞胺、 N-異丁基馬來醯亞胺、N-叔丁基馬來醯亞胺、N-環己基馬 來醯亞胺、N-氣苯基馬來醯亞胺、N-曱苯基馬來醢亞胺、 N-溴苯基馬來醯亞胺、N-萘基馬來醯亞胺、N-月桂基馬來 醯亞胺、N-羥苯基馬來醯亞胺、N-甲氧基苯基馬來醯亞胺、 N-羧基苯基馬來醯亞胺、N_硝基苯基馬來醯亞胺和N-苄基 馬來酿亞胺組成的組中的至少一種。在一個實施方式中， 具有醯亞胺基的單體為苯基馬來醯亞胺。 將共聚到丙烯酸類共聚物中的具有醯亞胺基的單體的 201211181 含量可為約1〜20wt%。在此範圍内時，黏合劑組合物顯示 出優異的而才熱性且不引起漏光。 在另一個實施方式中，丙烯酸類共聚物可具有至少一 個烷基、至少一個羥基、至少一個呋喃類基團和至少一個 缓基作為端基。 在丙烯酸類共聚物中，烷基、羥基、呋喃類基團和羧 基的位置無特別限制且可根據需要做適當改變。此外，在 丙烯酸類共聚物中，烷基、羥基、呋喃類基團或羧基可連 續排列。 丙烯酸類共聚物可通過具有羧基的單體以及(al)具有 烷基的（曱基）丙烯酸烷基酯、（a2)具有羥基的（甲基）丙烯酸 酯和(a3)具有呋喃類基團的化合物共聚獲得。 具有羧基的單體為具有羧基的（甲基）丙烯酸酯且可具 有以下通式5 : 〈通式5> CH2=CR-C(=0)0-(CH2)r-C00H， 其中，R為-Η或-(CH2)n-CH3，n為0~5的整數，且r為1~10 的整數。 例如，具有羧基的單體可為（甲基）丙烯酸-2-羧基乙酯。 將共聚到丙烯酸類共聚物中的具有羧基的單體的含量 可為約l~20wt%。在此範圍内時，黏合劑組合物顯示出優 異的耐熱性且不引起漏光。 在丙烯酸類共聚物中，基於100重量份的丙烯酸類共聚 物，將共聚到丙烯酸類共聚物中的具有芳族官能團的單體 12 201211181 的含量可為約1〜20重量份。在此範圍内時，黏合劑組合物 顯示出優異的耐熱性且不引起漏光。在一個實施方式中， 基於100重量份的丙烯酸類共聚物，具有芳族官能團的單體 的加入量可為約5~15重量份。 具有芳族官能團的單體非限制性包括選自由（甲基）丙 烯酸苯酯、苯氧基乙基（曱基）丙烯酸酯、（曱基）丙烯酸苄 酯、苯氧基二乙二醇（甲基）丙烯酸酯、環氧乙烷改性的壬基 酚（曱基）丙烯酸酯、羥基乙醇酸酯β-萘酚丙烯酸酯、（甲基) 丙烯酸聯苯酯、苯乙烯、乙烯基甲苯和α-甲基苯乙烯組成 的組中的至少一種。 在一個實施方式中，丙烯酸類共聚物可通過具有以下 通式1、2和3的單體共聚獲得： 〈通式1> CH2=CR-C(=0)0-(CH2)p-CH3， 其中，R為-Η或-(CH2)n-CH3，η為0~5的整數，且p為 0~20的整數。 例如，ρ為0〜19、優選1〜11、更優選2〜7的整數。 〈通式2> CH2=CR-C(=0)0-(CH2)q-0H， 其中，R為-Η或-(CH2)n-CH3，η為0~5的整數，且q為 1〜20的整數。 例如，q為1〜10、優選2〜6的整數。 〈通式3> CH2=CR-C(=0)0-R1 > 13 201211181 其中，R為-Η或-(CH2)n-CH3 ; η為0至5的整數；且R1 為呋喃基、四氫呋喃基、糠基或四氫糠基。 例如，η為0〜3、優選0〜1的整數。 在丙烯酸類共聚物中，具有通式1、2和3的單體的位置 無特別限制，且相同單體可連續排列。 例如，在丙烯酸類共聚物中，具有通式1、2和3的單體 可以約65〜90: 1〜10: 5~25的摩爾比共聚。在此範圍内時， 黏合劑組合物可防止漏光，顯示出優異的耐熱性，且具有 高剝離強度，因此消除了再剝離同時防止了分層。在一個 實施方式中，具有通式1、2和3的單體可以約67~87: 5~10: 8〜23的摩爾比共聚。 在另一個實施方式中，丙烯酸類共聚物可通過具有以 下通式1、2、3和4的單體共聚獲得： 〈通式1> CH2=CR-C(=0)0-(CH2)p-CH3 > 其中，R為-Η或-(CH2)n-CH3，η為0~5的整數，且p為 0〜20的整數。 例如，ρ為0〜19、優選1〜11、更優選2〜7的整數。 〈通式2> CH2=CR-C(=0)0-(CH2)q-0H > 其中，R為-Η或-(CH2)n-CH3，η為0〜5的整數，且q為 1~20的整數。 例如，q為1〜10、優選2〜6的整數。 〈通式3> 14 201211181 CH2=CR-C(=0)0-R1 > 其中，R為-H或-(CH2)n-CH3 ; n為0至5的整數；且Rl 為呋喃基、四氮呋喃基、糠基或四氫糠基。 例如，η為0〜3、優選0〜1的整數。 〈通式4> (R2)(R3)(R4)Si-(CH2)s-R5 > 其中，R2、R3和R4為鹵素或異有1至5個碳原子的烷氧 基，當s為〇時R5為乙烯基，且當s為1~1〇時R5為NC0。 例如，R2、R3和R4為具有1直4個碳原子的烷氧基。 在丙烯酸類共聚物中，具有通式1、2、3和4的單體的 位置無特別限制，且相同單體可連續排列。 例如，在丙烯酸類共聚物中’具有通式1、2、3和4的 單體可以約65~90: 1~10: 5~25: 〇.1~5的摩爾比共聚。在此範 圍内時，黏合劑組合物消除了在單獨使用矽炫偶聯劑時可 能出現的不均勻的黏合強度。此外，黏合劑組合物顯示出 與玻璃基板的優異黏結強度和丙烯酸類共聚物的優異存儲 穩定性。在一個實施方式中，具有通式1、2、3和4的單體 可以約67~87: 5~10: 8~23: 0.5~2.5的摩爾比共聚。 在丙烯酸類共聚物中，具有通式4的單體可與丙烯酸類 共聚物的主鏈共聚或與通式2的羥基偶聯。 丙烯酸類共聚物可具有約600,000~2,000,000 g/mo卜如 約 800,000〜1，500,000 8/111〇1的重均分子量。在 600,000~ 2,000,000 g/mol的範圍内時，很容易實現丙稀酸類共聚物的 共聚。 15 201211181 丙烯酸類共聚物可具有約2〜10，優選2或更大至小於 10 ’且更優選3~5的多分散指數。在此範圍内時，丙烯酸類 共聚物具有窄分子量分佈，因此提供均勻的黏合強度同時 消除漏光。 固化劑 基於100重量份的丙烯酸類共聚物，黏合劑組合物可包 括約0.1〜10重量份的固化劑。例如，基於100重量份的丙烯 酉文類共聚物，黏合劑組合物可包括約0.3〜5重量份的固化 劑。 固化劑可為熱固化劑。例如，固化劑非限制性包括選 自由異氰酸酯固化劑、環氧固化劑、氮雜環丙烷固化劑、 三聚氰胺固化劑、胺固化劑、醯亞胺固化劑、碳二亞胺固 化劑和酿胺固化劑組成的組中的至少一種。優選使用異氛 酸酯熱固化劑。 可使用任何公知的異氰酸酯熱固化劑。例如，異氰酸 酯熱固化劑可非限制性包括選自由2,4-曱苯二異氰酸酯、 2,6-甲苯二異氰酸酯、氫化甲苯二異氰酸酯、匕^二甲苯二 異氰酸酯、1,4-二甲苯二異氰酸酯、二苯基甲烷_4 4_二異氰 酸酯、1，3-雙異氰酸基甲基環己烷、四甲基二甲苯二異氰酸 酯、1,5-萘二異氰酸酯、2,2,4-三甲基六亞曱基二異氰酸酯、 三羥甲基丙烷的甲苯二異氰酸酯加合物、三羥曱基丙烷的 二甲苯二異氰酸酯加合物、三苯基甲烷三異氰酸酯和亞甲 基雙三異氰酸醋組成的組中的至少一種。 矽烷偶聯劑 16 201211181 所述黏合劑組合物可進一步包括(c)矽烷偶聯劑。基於 100重量份的丙烯酸類共聚物，矽烷偶聯劑的含量可為約 0.01〜5重量份。例如，基於100重量份的丙烯酸類共聚物， 石夕按•偶聯劑的含量可為約0.05~4重量份。 在此範圍内時’黏合劑組合物顯示出與玻璃基板的優 異黏合強度和丙烯酸類共聚物的優異存儲穩定性。 術語“矽烷偶聯劑”可指常規矽烷偶聯劑。例如，矽烷 偶聯劑非限制性包括選自由含可聚合的不飽和基團的矽化 合物’如乙烯基三甲氧基矽烷、乙烯基三乙氧基矽烷和（甲 基）丙烯醯氧基丙基三甲氧基矽烷；具有環氧結構的矽化合 物’如3-縮水甘油醚氧基丙基三甲氧基矽烷、3_縮水甘油醚 氧基丙基甲基二曱氧基矽烷和2-(3,4-環氧環己基）乙基三甲 氧基石夕燒，含氨基的石夕化合物，如3-敦基丙基三甲氧基石夕 烷、N-(2-氨基乙基)_3_氨基丙基三甲氧基矽烷和N-(2-氨基 乙基)-3-氨基丙基甲基二曱氧基矽烷；3-氣丙基三甲氧基石夕 烧等組成的組中的至少一種。 根據本發明實施方式的黏合劑組合物可通過以下步驟 製備：（第一步)通過(al)具有烷基的（甲基）丙烯酸烷基酯、(a2) 具有羥基的（曱基）丙烯酸酯和(a3)具有呋喃基的化合物共 聚製備丙烯酸類共聚物；和（第二步）向此丙烯酸類共聚物中 加入固化劑。 第一步 在第一步中，製備丙烯酸類共聚物黏結劑。丙烯酸類 共聚物可通過向（al)具有烷基的（甲基）丙烯酸烷基酯、（a2) 17 201211181 具有輕基的（甲基）丙烯酸g旨和(a3)具有咬喃類基團的化合 物加入用於它們共聚的引發劑來製備。 引發劑可非限制性地包括選自由2,2偶氮雙（2,4二甲 基戊腈）、偶氮二異丁腈、過氧化苯甲醯、過氧化雙月桂醯、 叔丁基-(2-乙基己基）單過氧化碳酸酯、叔戊基_(2乙基己基) 單過氧化碳酸醋、U-二(叔丁基過氧)環己烷、丨，卜二(叔戊 基過氧)環己烷、叔丁基過氧_3,5,5_三曱基己酸酯、丨上二(叔 丁基過氧)-3,3,5-三甲基環己烷、過硫酸鉀、過硫酸鈉、過 硫酸銨和偶氮類水溶性引發劑組成的組中的至少一種。優 選將偶氮二異丁腈用作引發劑。 基於100重量份的(al)(甲基）丙烯酸烷基酯，引發劑的 加入量可為約0.001〜2重量份。 在第一步中，加入溶劑以溶解(al)具有烷基的（甲基）丙 烯酸烷基酯、（a2)具有羥基的（甲基）丙烯酸酯和(a3)具有呋 喃類基團的化合物。可使用任何公知的溶劑如乙酸乙酯。 在第一步中，在丙烯酸類共聚物的共聚中可進一步加 入具有矽烷基的單體、具有醯亞胺基的單體和具有羧基的 單體中的至少一種。 可適當地調節共聚的溫度和時間。例如，丙缔酸類共 聚物的共聚可在約65~煎的溫度下進行約6〜S小時。 在第一步中，可進一步添加用於固化的催化劑。基於 100份的固化劑’該催化劑的加入量可為約請〜3份。例 如，催化劑可包括選自由认二氮雜二環[2,22]辛烧雙(2_ 二甲氨基乙基）鱗、三甲氨基乙基乙醇胺、n，n，n，，n，，n，，_ 18 201211181 五甲基二亞乙基三胺、N，N’-二甲基乙醇胺、二曱氨基丙基 胺、N-乙基嗎啉、Ν,Ν-二甲氨基乙基嗎啉、N，N-二曱基環 己基胺、2-曱基-2-氮雜降莰烷、二月矽酸二丁基錫、辛酸 亞錫、二乙酸二丁基錫和二硫醇二丁基錫組成的組中的至 少一種。 第二步 在第二步中，將固化劑加入丙烯酸類共聚物中以製備 最終的丙烯酸類黏合劑組合物。黏合劑組合物的製備可通 過常規方法進行。例如，將丙烯酸類共聚物和固化劑加入 諸如丁酮等溶劑中，隨後在約25t下攪拌約30~60分鐘，從 而制得黏合劑組合物。 在第二步中，可進一步向丙烯酸類共聚物中加入矽烷 偶聯劑。 本發明的另一方面提供一種包括所述黏合劑組合物的 偏光膜。在偏光膜中，黏合劑組合物可用作用於補償膜的 黏合劑，所述補償膜包括構成偏光膜的偏光器、透明支持 物、相位差膜等。 下文中，將參照製備例和測試例更詳細地說明本發 明。為了清楚性，省略本領域技術人員公知的細節。 實施例 製備例1:丙烯酸類共聚物的製備 在1 L四口圓底燒瓶中加入60 g乙酸乙醋、75 g丙烯酸 丁酯、8 g丙烯酸-4-羥丁酯和10 g曱基丙烯酸四氫糠酯，並 加熱至70°C。將0.08 g偶氮二異丁腈作為引發劑溶解於20 g 19 201211181 乙酸乙酯，並加入到燒瓶中。隨後通過在65〇c反應5小時來 製備丙烯酸類共聚物。在整個反應進行期間以10⑺^^比提 供氮氣。制得的丙烯酸類共聚物具有9,000 cps的黏度和25% 的固含量。此外，制得的丙烯酸類共聚物具有9〇〇,〇⑻g/m〇1 的重均分子量和3.8的多分散指數。在25〇c下用Br〇〇kfield 黏度計DV-II+，#7號轉子測定黏度。通過將〇 〇^丙烯酸類 共聚物溶解在lOmlTHF中，並用〇.45μιη的注射篩檢程式過 濾已溶解的丙烯酸類共聚物來測定多分散指數。將重均分 子量除以數均分子量可計算多分散指數。關於檢測器，使 用Waters 2414 RI檢測器。關於標準樣品，使用1〇系列的聚 苯乙稀Shodex SM-105。 製備例2:丙烯酸類共聚物的製備 在1 L四口圓底燒瓶中加入6〇 g乙酸乙酯、7〇 g丙烯酸 丁酯、8 g丙烯酸-4-羥丁酯和20g曱基丙烯酸四氫糠酯，成 加熱至70°C。將0.08g偶氮二異丁腈作為引發劑溶解於2〇g 乙酸乙酯，並加入到燒瓶中。3小時後，加入32〇 g乙酸乙 酯並將溫度降至40°C。在將生成物冷卻後，將2 g 3異氰酸 基丙基三乙氧基矽烷和0.01 g DBTDL(二月桂酸二丁基錫) 作為催化劑加入，隨後反應12小時。在整個反應進行期間 以10 cc/min提供氮氣。制得的丙烯酸類共聚物具有88〇〇 cps的黏度和25%的固含量。此外，制得的丙烯酸類共聚物 具有850,000 g/m〇l的重均分子量和4 3的多分散指數。 製備例3:丙烯酸類共聚物的製備 在1 L四口圓底燒瓶中加入6〇g乙酸乙酯、75g丙烯酸 20 201211181 丁酯、8 g丙烯酸-4-經丁酯和l〇 g曱基丙稀酸四氫糠酯，並 加熱至70°C。將〇.〇8 g偶氮二異丁腈作為引發劑溶解於2〇 g 乙酸乙醋，並加入到燒瓶中。3小時後，加入320 g乙酸乙 酯並將溫度降至40°C。在將生成物冷卻後，將2 g 3-異氰酸 基丙基三乙氧基矽烷和0.01 g DBTDL(二月桂酸二丁基錫) 作為催化劑加入，隨後反應12小時。在整個反應進行期間 以10 cc/min提供氮氣。制得的丙烯酸類共聚物具有1〇 5〇〇 cps的黏度和25%的固含量。此外，制得的丙烯酸類共聚物 具有820,000 g/mol的重均分子量和4.2的多分散指數。 製備例4:丙烯酸類共聚物的製備 按照與製備例1相同的方法製備丙烯酸類共聚物，區別 在於不加入10 g甲基丙稀酸四氫糠酯。 製備例5:丙烯酸類共聚物的製備 按照與製備例3相同的方法製備丙烯酸類共聚物，區別 在於不加入l〇g曱基丙烯酸四氫糠酯。 實施例1〜3和對比例 按表1所不的重量比（重量份，固含量），將制得的各内 稀酸類共聚物、@化劑和/或魏偶加人㈣重量份的 丁酮中，隨後在饥下_3()分鐘，以此製備黏合劑組合 物。 21 201211181 表1 實施例 對比例 1 2 3 1 2 製備例1 97 - - — 製備例2 丙烯酸類 共聚物製備例3 製備例4 - 98 -- 98 97 - 製備例5 - - - - 98 固化劑1 0.5 2 - 0.5 - 固化劑2 - - 2 - 2 矽烷偶聯劑 2.5 ~ - 2.5 - *固化劑1 : 三羥曱基丙烷改性的1苯二異氰酸酯(TDI加合物型） (AK-75, AekyungChem.有限公司） *固化劑2 : 改性的六亞甲基二異氰酸酷（改性HDI三聚物)(DN-955, Aekyung Chem•有限公司） *矽烷偶聯劑：3·縮水甘油喊氧基丙基甲氧基矽烷(KBM-403, Shinetsu Chemical Industries有限公司） 評價各黏合劑組合物的以下性質，且結果顯示在表2 中。 評價方法 1. 塗層液體(coating liquid)的目視檢查 將實施例和對比例的各黏合劑組合物在室溫下放置1 周，隨後目視檢查其透明性/不透明性。 2. 剝離強度(gf/25mm) 根據JIS 2107 ’測定黏合劑組合物和玻璃基板間的180。 剝離強度。將黏合劑組合物的樣品切成25x100 mm並層疊 到玻璃表面上。隨後，在使用質構儀將黏合劑層和玻璃基 板與30 kgf負荷感測器的上夾具和下夾具連接後，測定負 荷’同時以300 mm/min的拉伸速度進行剝離。 3. 切割性能/再加工性能 22 201211181 將塗佈有根據實施例和對比例製備的各種黏合劑組合 物的偏光片用Thomson切割器切成400x250 mm ,並觀察偏 光片的橫切面。將偏光片用黏合劑組合物黏結至玻璃基板 的兩側，並經受4~5 kg/cm2的壓力以製備樣品。將樣品在 7〇C下放置6小時後’觀察玻璃基板表面上的殘留物，同時 在1小時内緩慢冷卻至室溫。評價標準如下。 〇 :橫切面上無黏合劑殘留’且黏合劑完全從橫切面上 除去(再加工時無黏合劑轉移） △.橫切面上有少量黏合劑殘留，且黏合劑未完全從 橫切面上除去(再加工時有少量黏合劑轉移） X:明顯的黏合劑殘留，且黏合劑未完全除去(再加工 時有黏合劑轉移） 4.漏光(透光率均勻性） 使用與以下耐久性測試相同的那些樣品，評價透光率 的均勻性。為了測定透光率的均勻性’在暗室中使用背光 觀察漏光。將塗佈的偏光片（400x200 mm)附著到玻璃基板 (400x200x15 mm)的兩側，使得偏光片的光轴彼此交又。將 每個樣品在80°C下保持250小時，或在高濕條件，即在60°C 和90%相對濕度下保持250小時，並隨後在測定前在室溫下 放置超過1小時。評價標準如下。 〇 :難以目視確定透光率的不均勻性 △:透光率的輕微不均勻性 X :透光率的顯著不均勻性 5.黏合劑場變(mm) 23 201211181 將塗佈有根據實施例和對比例製備的各個黏合劑組合 物的偏光片切成1.5x1.5 cm，附著到玻璃基板上，並在室溫 下放置3天以製備樣品。使用Universal Test Machine(UTM) 對樣品持續1〇分鐘施加2kgf力，根據測定樣品的剪切距 離，測定黏合劑蠕變。 6.耐久性 通過對偏光片施加4〜5 kg/cm2的壓力，將塗佈有根據實 施例和對比例製備的黏合劑組合物的偏光片（l〇〇mm x 175mm)附著到玻璃基板的兩側，以製備樣品。在此情況 中，樣品的製備在潔淨室中進行，以防止樣品上起泡或有 異物。將制得樣品在8(TC下放置500小時，並觀察氣泡的產 生或樣品的分層以評價耐熱性。為了評價耐熱性/耐濕性， 將樣品在6〇t和90%相對濕度下放置500小時，並觀察氣泡 的產生或分層。在評價前立即將樣品在室溫下放置〖小時， 用肉眼或顯微鏡進行觀察。評價標準如下。 Ο .無氣泡或分層，△:輕微起泡或分層，X :顯著起 泡或分層 表2 實施例_對比例 評價專案 1 2 3 1 2 塗層液體的外觀 透明 透明 透明 透明 透明 剝離強度(gf/25mm) 280 220 330 500 550 切割性能/再加工性質 〇 〇 〇 〇 △ 漏光(透光率均勻性） 〇 0 〇 X X 黏合劑蠕變(mm) 0.162 0.173 0.183 0.384 0.409 耐久性耐熱性 〇 〇 〇 Δ Δ 高耐濕性 〇 〇 〇 Δ Λ 24 201211181 從表2可見，本發明實施例的黏合劑組合物顯示出優異 的耐久性、顯著的黏合強度和高剝離強度，同時防止漏光 (參見實施例1至3)。包括主鏈中具有呋喃類基團的丙烯酸類 共聚物的黏合劑組合物顯示在減少漏光以及同時改進耐熱 性上顯示出優異的效果(實施例1和3，對比例1和2)。 雖然本文已公開了 一些實施方式，但本領域技術人員 應理解這些實施方式僅以說明的方式提供，且在不背離本 發明精神和範圍下可進行各種修改、變化和更改。因此， 本發明的範圍應僅由所附申請專利範圍和其等價形式所限 定。 I：圖式簡單說明3 (無） 【主要元件符號說明】 (無） 25201211181 VI. OBJECTS OF THE INVENTION: TECHNICAL FIELD The present invention relates to an acrylic adhesive composition and a polarizing film comprising the acrylic adhesive composition. More specifically, the present invention relates to an acrylic adhesive composition comprising an acrylic copolymer which is blocked by an alkyl group, a hydroxyl group and a furan group to prevent light leakage, and a polarizing film comprising the acrylic adhesive composition. [Prior Art 3 Background] A polarizer is an optical element used for a liquid crystal display (LCD). The polarizer contains an iodine compound or a dichroic polarizing material arranged in a fixed direction. The polarizer has a multilayer structure * a protective film is formed on both sides of the polarizer to protect the polarizing film or other elements. Each of the films constituting the multilayer structure of the polarizer is composed of a material having a different molecular structure and composition. Therefore, each film of the polarizer exhibits different physical properties. Especially when the optical film is used for a long period of time under high temperature and high humidity conditions, the internal stress caused by the change in the size of the optical film concentrates on the edge of the optical film rather than the center, causing light leakage, in which the edge of the liquid crystal device is more than the center thereof. bright. Various adhesive compositions have been suggested to prevent light leakage. For example, it has been proposed to use an adhesive composition using an acrylic adhesive which includes acrylonitrile as a main component and is only terminated by a burnt base to release stress to the utmost extent. Specifically, a propylene@man_junction having a molecular weight of 3 201211181 1'500,000 to 2,000,000 curry 1 was prepared, and a small amount of a thermosetting agent was used to maximize the coating film. However, acryl-based adhesives, which are only terminated by a burn-in, cannot ensure complete prevention of light leakage under hot or hot wet conditions. Further, conventional binder compositions for polarizing films generally include an acrylic binder, a isocyanate thermosetting agent, and a decane coupling agent. A decane coupling agent is added to improve the adhesion strength to the glass substrate. However, when a very small amount of the alkylene coupling agent is added, it is problematic when mixed. Further, in the case where the search is difficult, the adhesive strength of the adhesive composition becomes uneven after the formation of the polarizing film. C SUMMARY OF THE INVENTION 3 SUMMARY OF THE INVENTION One aspect of the present invention provides a binder composition comprising: an acrylic copolymer having at least one alkyl group, at least one warp group, and at least one furan group as a terminal group; Hardener. The acrylic copolymer can be obtained by copolymerization of (al) an alkyl (meth) acrylate having an alkyl group, (a2) a (meth) acrylate having a hydroxyl group, and (a3) a compound having a guanidine group. . The acrylic copolymer may pass (al) about 6 〇 to 98 wt% of the alkyl (meth) acrylate, (a2) about 1 to 10 wt% of the (meth) acrylate and (a3) ) about 30% by weight of the compound was obtained by copolymerization. The oxime-based group may be a furyl group, a tetrahydrofuranyl group or a fluorenyl-based tetrahydroindenyl group. The acrylic copolymer may further be copolymerized with a monomer having a fluorenylene group, and the acrylic copolymer described in 201211181 may be further copolymerized with a monomer having a quinone imine group. The acrylic copolymer may be further copolymerized with a monomer having a carboxyl group. The acrylic copolymer may have a weight average molecular weight of about 800,000 to 1,500,000 g/mol. The acrylic copolymer may have a polydispersity index of from about 2 to 10. The binder composition may further comprise (C) a decane coupling agent. Another aspect of the invention provides a polarizing film comprising the binder composition. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will now be described in detail. One aspect of the present invention provides a binder composition comprising: (A) an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furan group as a terminal group; and (B) a curing agent. Acrylic Copolymer The acrylic copolymer may have at least one alkyl group, at least one hydroxyl group, and at least one furan group as a terminal group. In the acrylic copolymer, the positions of the alkyl group, the hydroxyl group and the furan group as a terminal group are not particularly limited and may be appropriately changed as needed. Further, in the acrylic copolymer, alkyl groups, hydroxyl groups and furan groups as terminal groups may be continuously arranged. The acrylic copolymer can be obtained by copolymerization of (al) a (meth)acrylic acid 201211181 alkyl ester having an alkyl group, (a2) a (fluorenyl) acrylate having a hydroxyl group, and (a3) a compound having a furan group. In one embodiment, the acrylic copolymer may pass (al) about 60 to 98% by weight of the alkyl (meth) acrylate, (a2) about 1 to 1% by weight of the (meth)acrylic acid. The ester and (a3) are obtained by copolymerization of about 1 to 30% by weight of the compound. In another embodiment, the acrylic copolymer may pass (al) about 65 to 85 wt% of the alkyl (meth)acrylate, (a2) about 5 to 1 wt% of the (meth) The acrylate and (a3) are obtained by copolymerization of about 10 to 25 wt% of the compound. The (indenyl)alkyl acrylate having an alkyl group may include a linear (meth)acrylic acid alkyl ester having a linear or branched alkyl group of 1 to 20 carbon atoms in the ester moiety. For example, an alkyl (meth) acrylate may include an alkyl (meth) acrylate having a linear or branched alkyl group having 2 to 12 carbon atoms, preferably 3 to 8 carbon atoms, in the ester moiety. For example, an alkyl (meth) acrylate having an alkyl group includes, without limitation, a methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, (meth) acrylate Propyl ester, n-butyl (meth) acrylate, tert-butyl (meth) acrylate, isobutyl (meth) acrylate, sec-butyl (meth) acrylate, amyl (meth) acrylate, (methyl) Hexyl acrylate, heptyl (meth) acrylate, octyl (meth) acrylate, decyl decyl acrylate, decyl methacrylate, decyl (meth) acrylate and (methyl) At least one of the group consisting of lauryl acrylate. For example, the alkyl (meth)acrylate having an alkyl group includes, without limitation, methyl (meth)acrylate, ethyl (meth)acrylate, 201211181. (fluorenyl) propyl acrylate, isopropyl (meth) acrylate, n-butyl sulfonium (decyl) acrylate, tert-butyl acrylate (meth) acrylate, and isobutyl ketone At least one of the group consisting of '(meth) sec-butyl acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, and octyl (meth) acrylate). The alkyl (meth) acrylate having an alkyl group copolymerized in the acrylic copolymer may be contained in the acrylic copolymer in an amount of from about 6 Torr to 98 wt%. Within this range, the adhesive composition exhibits an excellent initial bond strength, thus preventing the film from peeling off at its edges during the reliability test. In addition, stick slip does not occur in the reworking process, which is advantageous for rework. In addition, the binder composition provides excellent processability in the cutting process without omitting the binder. In one embodiment, the alkyl (meth) acrylate having an alkyl group copolymerized into the acrylic copolymer may be present in the acrylic copolymer in an amount of from about 65 to 85 wt%. The (meth) acrylate having a hydroxyl group is not particularly limited as long as it has a hydroxyl group at a terminal position in the ester moiety or its structure, and can be bonded to an alkyl (meth) acrylate having an alkyl group or having a furan group. Compound copolymerization. For example, '(meth) acrylate having a hydroxyl group may include a straight or branched chain having from 2 to 6 carbon atoms, preferably from 1 to 10 carbon atoms, more preferably from 2 to 6 carbon atoms in the ester moiety. Alkyl (indenyl) alkyl acrylate. For example, '(mercapto) acrylate having a hydroxyl group includes, without limitation, 2-hydroxyethyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, (mercapto)acrylic acid _2 -hydroxypropyl ester, 2-hydroxybutyl (meth) acrylate, (mercapto) acrylate-6-hexane vinegar, hydrazine, 4-cyclohexanedetrolol mono(indenyl) acrylate, 1-gas -2-hydroxypropene 201211181 2-yl (meth) propylene _, diethylene glycol (methyl) propylene, ^ hexamethylene propylene (tetra), pentaerythritol tris (indenyl) propion, second season 戍^五(曱基)丙驰S|, neopentyl glycol mono(indenyl)propene, triion-propanyl-bis(methyl)propionic acid, tri-methyl-ethyl bromide (methyl) Bismuth acrylate, 2-carbyl-3-phenoxypropyl(indenyl)propionic acid hydrazide via cyclohexyl (methane) alkene lSa 2-transbasic _3·phenoxy (fluorenyl) a group of <> in the group consisting of acrylic acid, 4 via a ring, soil (mercapto) propylene W, and cyclohexane-sintered dimethanol mono(meth)acrylate vinegar. In particular, it is most preferred that the (meth)acrylic acid group having a linear or branched pendant group having 2 to 6 carbon atoms of a trans group in the S moiety is, for example, selected from (indenyl) propionate- 2-Ethyl acetate, (mercapto) acrylic acid-4- butyl vinegar, (mercapto) acrylic acid _2 • yue, (indenyl) propanolic acid _2 by butyl vinegar and (methyl At least one of 6-hydroxyhexyl acrylate. Further, (meth) propylene sulfonate having a hydroxyl group which is copolymerized into the acrylic copolymer by using ethyl (meth) acrylamide instead of the (meth) acrylate having a trans group may be used. The content in the acrylic copolymer may be about 丨~chuan. Within this range, the acrylic copolymer exhibits excellent cross-linking, which reduces the burrs during the cutting process of the adhesive film and the transfer to the glass substrate during reworking, thus providing excellent initial bond strength. In one embodiment, the (fluorenyl) acrylate having a hydroxyl group copolymerized into the acrylic copolymer may be included in the acrylic copolymer in an amount of about 5 to 10% by weight. The compound having a furan group is not particularly limited as long as it has a furan group ' and can be (al) an alkyl (meth) acrylate having an alkyl group or (a2) a (fluorenyl) acrylate having a hydroxyl group Copolymerization. Alternatively, the compound having a furan group is not particularly limited as long as it has a furan group and is capable of coupling with a hydroxyl group of (indenyl) acrylate having a hydroxyl group in 201211181. The fluranyl group may be a furyl group or a modified fluorenyl group such as a tetrahydrofuranyl group, a fluorenyl group or a tetrahydroindenyl group. In one embodiment, the furan group is tetrahydro. Fukanji. The compound having a furan group includes, without limitation, decyl isocyanate, tetrahydrofurfuryl isocyanate, decyl propionate, tetrahydrofurfuryl propionate, tetrahydrofurfuryl valerate or decyl valerate. The compound having a furan group may have the following formula 3: <Formula 3> CH2=CR-C(=0)0-R1 wherein R is -Η or -(CH2)n-CH3; η is 0 to An integer of 5; and R1 is furyl, tetrahydrofuranyl, fluorenyl or tetrahydroindenyl. Examples of the compound of the formula 3 may include (mercapto) decyl acrylate or tetrahydrofurfuryl (meth) acrylate. An example of a compound having a furan group includes (indenyl) tetrahydrofurfuryl acrylate. The content of the compound having a furan group copolymerized into the acrylic copolymer may be from about 1 to 30% by weight. Within this range, even after maintaining at 90% relative humidity and 60 ° C or 85 ° C for 250 hours, the adhesive composition showed excellent heat and did not cause light leakage. In one embodiment, the compound having a furan group copolymerized into the acrylic copolymer may be contained in an amount of about 10 to 25 % by weight. The acrylic copolymer may further include at least one selected from the group consisting of a decyl group, a quinone imine group, and a carboxyl group as an end, in addition to at least one alkyl group, at least one hydroxyl group, and at least one furan group as a terminal group. 201211181 base. In one embodiment, the acrylic copolymer may include at least one alkyl group, at least one hydroxyl group, at least one furan group, and at least one decyl group as an end group. As used herein, the term "decane," or "decyl" refers to a terpene (SiH4) or a decane having from 1 to 3 substituents, such as a pixel substitution or a C1_C^ chain or a branched alkoxy substituted decane. In the copolymer-like copolymer, the positions of the alkyl group, the hydroxyl group, the furan group, and the decyl group as the terminal group are not particularly limited and may be appropriately changed as needed. Further, in the acrylic copolymer, an alkyl group, a hydroxyl group, and a furan D are used. The south group or the fluorenyl group may be continuously arranged. The acrylic copolymer may pass through a monomer having a decyl group and (al) an alkyl (meth) acrylate having an alkyl group, and (a2) a (meth) group having a hydroxyl group. The acrylate is obtained by copolymerization of (a3) a compound having a furan group. The monomer having a decyl group is not specifically shown as long as it has a decane or a decyl group and can be coupled to a hydroxyl group of a (meth) acrylate having a hydroxyl group. In one embodiment, a monomer having a decyl group may be coupled to a hydroxyl group of a (meth) acrylate having a hydroxyl group through an isocyanate moiety. The monomer having a decyl group includes, without limitation, a 3-isocyanate group. C At least one selected from the group consisting of tridecyloxydecane, 3-isocyanatopropyltriethoxydecane, vinyltrioxane, vinyltrimethoxydecane, and vinyltriethoxylate. In one embodiment, the monomer having a decyl group is 3-isocyanatopropyltriethoxydecane. The phenolic base is copolymerized into the acrylic copolymer based on 100 parts by weight of the acrylic copolymer. The content of the monomer may be about 0. 01 to 5 by weight 10 201211181 The binder composition shows an excellent content of the copolymer of the type, preferably about 1 to 4 parts by weight. When it is within this range, excellent adhesion strength to the glass substrate and stability of the internal acid storage are exhibited. At least one and at least one In another embodiment the 'acrylic copolymer' may have an alkyl group, at least one hydroxyl group, and at least one furan group indigo imine group as a terminal group. In the acrylic copolymer, 'as the base of the end group, sound it. The position of the group (4) imine group is not limited to the community. Further, in the acrylic copolymer, an alkyl group, a hydroxyl group, a furan group or a quinone imine group may be continuously arranged. The acrylic copolymer may pass through a monomer having a quinone imine group and (al) an alkyl (meth) acrylate having an alkyl group, (a2) a (meth) propionate having a hydroxyl group, and (a3) having The compound of the quinone group is obtained by copolymerization. The monomer having a quinone imine group may include, but is not limited to, selected from the group consisting of maleic imine, phenyl maleimine, N-methyl maleimide, N-ethyl maleimide, N · Propylmaleimide, N-isopropylmaleimide, N-butylmaleimide, N-isobutyl maleimide, N-tert-butyl malayan Amine, N-cyclohexylmaleimide, N-gas phenyl maleimide, N-nonylphenylmaleimide, N-bromophenylmaleimide, N-naphthyl horse醯imine, N-lauryl maleimide, N-hydroxyphenyl maleimine, N-methoxyphenyl maleimine, N-carboxyphenyl maleimide, At least one of the group consisting of N-nitrophenylmaleimine and N-benzyl maleimide. In one embodiment, the monomer having a quinone imine group is phenylmaleimide. The 201211181 content of the monomer having a quinone imine group copolymerized into the acrylic copolymer may be about 1 to 20% by weight. Within this range, the binder composition exhibits excellent heat and does not cause light leakage. In another embodiment, the acrylic copolymer may have at least one alkyl group, at least one hydroxyl group, at least one furan group, and at least one slow group as a terminal group. In the acrylic copolymer, the positions of the alkyl group, the hydroxyl group, the furan group and the carboxyl group are not particularly limited and may be appropriately changed as needed. Further, in the acrylic copolymer, an alkyl group, a hydroxyl group, a furan group or a carboxyl group may be continuously arranged. The acrylic copolymer may pass through a monomer having a carboxyl group and (al) an alkyl (meth) acrylate having an alkyl group, (a2) a (meth) acrylate having a hydroxyl group, and (a3) having a furan group. The compound is obtained by copolymerization. The monomer having a carboxyl group is a (meth) acrylate having a carboxyl group and may have the following formula 5: <Formula 5> CH2=CR-C(=0)0-(CH2)r-C00H, wherein R is -Η or -(CH2)n-CH3, n is an integer from 0 to 5, and r is an integer from 1 to 10. For example, the monomer having a carboxyl group may be 2-carboxyethyl (meth)acrylate. The content of the monomer having a carboxyl group copolymerized into the acrylic copolymer may be from about 1 to 20% by weight. Within this range, the adhesive composition exhibits excellent heat resistance and does not cause light leakage. In the acrylic copolymer, the content of the aromatic functional group-containing monomer 12 201211181 copolymerized into the acrylic copolymer may be about 1 to 20 parts by weight based on 100 parts by weight of the acrylic copolymer. Within this range, the adhesive composition exhibits excellent heat resistance and does not cause light leakage. In one embodiment, the monomer having an aromatic functional group may be added in an amount of about 5 to 15 parts by weight based on 100 parts by weight of the acrylic copolymer. The monomer having an aromatic functional group includes, but is not limited to, selected from the group consisting of phenyl (meth) acrylate, phenoxyethyl (decyl) acrylate, benzyl (meth) acrylate, and phenoxy diethylene glycol (A). Acrylate, ethylene oxide modified nonylphenol (mercapto) acrylate, hydroxy glycolate β-naphthol acrylate, biphenyl (meth) acrylate, styrene, vinyl toluene and α At least one of the group consisting of -methylstyrene. In one embodiment, the acrylic copolymer can be obtained by copolymerization of monomers having the following formulas 1, 2 and 3: <Formula 1> CH2=CR-C(=0)0-(CH2)p-CH3, Wherein R is -Η or -(CH2)n-CH3, η is an integer of 0-5, and p is an integer of 0-20. For example, ρ is an integer of 0 to 19, preferably 1 to 11, more preferably 2 to 7. <Formula 2> CH2=CR-C(=0)0-(CH2)q-0H, wherein R is -Η or -(CH2)n-CH3, η is an integer of 0-5, and q is 1 An integer of ~20. For example, q is an integer of 1 to 10, preferably 2 to 6. <Formula 3> CH2=CR-C(=0)0-R1 > 13 201211181 wherein R is -Η or -(CH2)n-CH3; η is an integer of 0 to 5; and R1 is a furyl group, Tetrahydrofuranyl, fluorenyl or tetrahydroindenyl. For example, η is an integer of 0 to 3, preferably 0 to 1. In the acrylic copolymer, the positions of the monomers having the formulae 1, 2 and 3 are not particularly limited, and the same monomers can be continuously arranged. For example, in the acrylic copolymer, the monomers having the formulae 1, 2 and 3 may be copolymerized in a molar ratio of about 65 to 90: 1 to 10: 5 to 25. Within this range, the binder composition prevents light leakage, exhibits excellent heat resistance, and has high peel strength, thereby eliminating re-peeling while preventing delamination. In one embodiment, the monomers having the formulae 1, 2 and 3 may be copolymerized in a molar ratio of from about 67 to 87: 5 to 10: 8 to 23. In another embodiment, the acrylic copolymer can be obtained by copolymerization of monomers having the following formulas 1, 2, 3 and 4: <Formula 1> CH2=CR-C(=0)0-(CH2)p -CH3 > wherein R is -Η or -(CH2)n-CH3, η is an integer from 0 to 5, and p is an integer from 0 to 20. For example, ρ is an integer of 0 to 19, preferably 1 to 11, more preferably 2 to 7. <Formula 2> CH2=CR-C(=0)0-(CH2)q-0H > wherein R is -Η or -(CH2)n-CH3, η is an integer of 0 to 5, and q is An integer from 1 to 20. For example, q is an integer of 1 to 10, preferably 2 to 6. <Formula 3> 14 201211181 CH2=CR-C(=0)0-R1 > wherein R is -H or -(CH2)n-CH3; n is an integer of 0 to 5; and R1 is a furyl group, Tetranitrofuranyl, fluorenyl or tetrahydroindenyl. For example, η is an integer of 0 to 3, preferably 0 to 1. <Formula 4> (R2)(R3)(R4)Si-(CH2)s-R5 > wherein R2, R3 and R4 are halogen or an alkoxy group having 1 to 5 carbon atoms, when s is R5 is a vinyl group when 〇, and R5 is NC0 when s is 1~1〇. For example, R2, R3 and R4 are alkoxy groups having 1 straight 4 carbon atoms. In the acrylic copolymer, the positions of the monomers having the formulae 1, 2, 3 and 4 are not particularly limited, and the same monomers may be continuously arranged. For example, in the acrylic copolymer, the monomer having the formulas 1, 2, 3 and 4 may be about 65 to 90: 1 to 10: 5 to 25: 〇. A molar ratio of 1 to 5 is copolymerized. Within this range, the binder composition eliminates the uneven bond strength that may occur when the zephyr coupling agent is used alone. Further, the adhesive composition exhibits excellent bonding strength with a glass substrate and excellent storage stability of an acrylic copolymer. In one embodiment, the monomers having the general formulas 1, 2, 3, and 4 may be about 67 to 87: 5 to 10: 8 to 23: 0. 5~2. A molar ratio of 5 is copolymerized. In the acrylic copolymer, the monomer having the formula 4 may be copolymerized with the main chain of the acrylic copolymer or with the hydroxyl group of the formula 2. The acrylic copolymer may have a weight average molecular weight of from about 600,000 to 2,000,000 g/mo, such as from about 800,000 to 1,500,000 8/111 〇1. The copolymerization of the acrylic acid copolymer is easily achieved in the range of 600,000 to 2,000,000 g/mol. 15 201211181 The acrylic copolymer may have a polydispersity index of from about 2 to 10, preferably from 2 or more to less than 10' and more preferably from 3 to 5. Within this range, the acrylic copolymer has a narrow molecular weight distribution, thereby providing uniform bonding strength while eliminating light leakage. The curing agent is based on 100 parts by weight of the acrylic copolymer, and the binder composition may comprise about 0. 1 to 10 parts by weight of a curing agent. For example, the binder composition may comprise about 0. based on 100 parts by weight of the propylene-based copolymer. 3 to 5 parts by weight of a curing agent. The curing agent can be a thermal curing agent. For example, the curing agent includes, without limitation, selected from the group consisting of an isocyanate curing agent, an epoxy curing agent, an aziridine curing agent, a melamine curing agent, an amine curing agent, a quinone imine curing agent, a carbodiimide curing agent, and a brewing amine curing. At least one of the group consisting of agents. It is preferred to use an isoester thermal curing agent. Any known isocyanate thermosetting agent can be used. For example, the isocyanate thermosetting agent may include, but is not limited to, selected from the group consisting of 2,4-nonyl diisocyanate, 2,6-toluene diisocyanate, hydrogenated toluene diisocyanate, xylene xylene diisocyanate, 1,4-dimethylbenzene diisocyanate. , diphenylmethane_4 4_diisocyanate, 1,3-bisisocyanatomethylcyclohexane, tetramethylxylene diisocyanate, 1,5-naphthalene diisocyanate, 2,2,4-three Methylhexadecyl diisocyanate, toluene diisocyanate adduct of trimethylolpropane, xylene diisocyanate adduct of trishydroxypropyl propane, triphenylmethane triisocyanate and methylene bis triisocyanate At least one of the group consisting of sour vinegar. The decane coupling agent 16 201211181 The binder composition may further comprise (c) a decane coupling agent. The content of the decane coupling agent may be about 0. based on 100 parts by weight of the acrylic copolymer. 01 to 5 parts by weight. For example, based on 100 parts by weight of the acrylic copolymer, the content of the coupling agent can be about 0. 05~4 parts by weight. Within this range, the adhesive composition exhibits excellent adhesion strength to a glass substrate and excellent storage stability of an acrylic copolymer. The term "decane coupling agent" may refer to a conventional decane coupling agent. For example, the decane coupling agent includes, without limitation, an anthracene compound selected from a polymerizable unsaturated group such as vinyltrimethoxydecane, vinyltriethoxydecane, and (meth)acryloxypropylpropyl. Trimethoxydecane; an anthracene compound having an epoxy structure such as 3-glycidoxypropyltrimethoxydecane, 3-glycidyloxypropylmethyldimethoxyoxydecane, and 2-(3, 4-epoxycyclohexyl)ethyltrimethoxylate, amino-containing compound, such as 3-dylpropyltrimethoxy-naphthene, N-(2-aminoethyl)-3-aminopropyltrimethoxy At least one selected from the group consisting of decane and N-(2-aminoethyl)-3-aminopropylmethyldimethoxy decane; 3-cyclopropyltrimethoxy sulphide. The adhesive composition according to an embodiment of the present invention can be produced by the following steps: (first step) by (al) (alkyl) alkyl (meth)acrylate having an alkyl group, (a2) (fluorenyl) acrylate having a hydroxyl group An acrylic copolymer is prepared by copolymerizing (a3) a compound having a furyl group; and (second step) a curing agent is added to the acrylic copolymer. First step In the first step, an acrylic copolymer binder is prepared. The acrylic copolymer can be obtained by (a) an alkyl (meth)acrylate having an alkyl group, (a2) 17 201211181 having a light base (meth)acrylic acid, and (a3) having a guanidine group. Compounds are prepared by adding an initiator for their copolymerization. The initiator may include, but is not limited to, selected from the group consisting of 2,2 azobis(2,4-dimethylvaleronitrile), azobisisobutyronitrile, benzammonium peroxide, bismuth peroxide, t-butyl- (2-ethylhexyl) monoperoxycarbonate, tert-amyl-(2ethylhexyl) monoperoxycarbonate, U-di(tert-butylperoxy)cyclohexane, anthracene, di-b-tert Base peroxy) cyclohexane, tert-butylperoxy-3,5,5-tridecylhexanoate, bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane At least one of the group consisting of potassium persulfate, sodium persulfate, ammonium persulfate, and an azo-based water-soluble initiator. Azobisisobutyronitrile is preferably used as the initiator. The initiator may be added in an amount of about 0. based on 100 parts by weight of the (al) alkyl (meth)acrylate. 001 to 2 parts by weight. In the first step, a solvent is added to dissolve (al) an alkyl (meth) acrylate having an alkyl group, (a2) a (meth) acrylate having a hydroxyl group, and (a3) a compound having a furan group. Any well-known solvent such as ethyl acetate can be used. In the first step, at least one of a monomer having a decyl group, a monomer having a ruthenium group, and a monomer having a carboxyl group may be further added to the copolymerization of the acrylic copolymer. The temperature and time of copolymerization can be appropriately adjusted. For example, the copolymerization of the propionic acid copolymer can be carried out at a temperature of about 65 to a frying temperature for about 6 to S hours. In the first step, a catalyst for curing may be further added. The catalyst may be added in an amount of about ~3 parts based on 100 parts of the curing agent. For example, the catalyst may comprise a bis(2-dimethylaminoethyl) sulphate, trimethylaminoethylethanolamine, n, n, n, n, n, selected from diazabicyclo[2,22]octane. _ 18 201211181 Pentamethyldiethylenetriamine, N,N'-dimethylethanolamine, diaminopropylamine, N-ethylmorpholine, hydrazine, hydrazine-dimethylaminoethylmorpholine, N , at least one of the group consisting of N-didecylcyclohexylamine, 2-mercapto-2-azanedecane, dibutyltin dilaurate, stannous octoate, dibutyltin diacetate, and dibutyltin dithiolate One. Second step In the second step, a curing agent is added to the acrylic copolymer to prepare a final acrylic adhesive composition. The preparation of the binder composition can be carried out by a conventional method. For example, an acrylic copolymer and a curing agent are added to a solvent such as methyl ethyl ketone, followed by stirring at about 25 t for about 30 to 60 minutes, thereby preparing a binder composition. In the second step, a decane coupling agent may be further added to the acrylic copolymer. Another aspect of the invention provides a polarizing film comprising the binder composition. In the polarizing film, the binder composition can be used as a binder for compensating the film, and the compensation film includes a polarizer constituting the polarizing film, a transparent support, a retardation film, and the like. Hereinafter, the present invention will be explained in more detail with reference to Preparation Examples and Test Examples. Details that are well known to those skilled in the art are omitted for clarity. EXAMPLES Preparation Example 1: Preparation of Acrylic Copolymer A 1 L four-neck round bottom flask was charged with 60 g of ethyl acetate, 75 g of butyl acrylate, 8 g of 4-hydroxybutyl acrylate and 10 g of methacrylic acid. Hydroquinone ester and heated to 70 °C. Will be 0. 08 g of azobisisobutyronitrile was dissolved as an initiator in 20 g of 19 201211181 ethyl acetate and added to the flask. The acrylic copolymer was then prepared by reacting at 65 ° C for 5 hours. Nitrogen gas was supplied at a ratio of 10 (7)^^ during the entire reaction. The resulting acrylic copolymer had a viscosity of 9,000 cps and a solids content of 25%. Further, the obtained acrylic copolymer had a weight average molecular weight of 9 Å, 〇(8) g/m 〇 1 and 3. The polydispersity index of 8. The viscosity was measured at 25 °c using a Br〇〇kfield viscometer DV-II+, #7 rotor. By dissolving the 〇 〇 acrylate copolymer in 10 ml of THF and using hydrazine. The 45 μιη injection screening program filters the dissolved acrylic copolymer to determine the polydispersity index. The polydispersity index can be calculated by dividing the weight average molecular weight by the number average molecular weight. For the detector, a Waters 2414 RI detector was used. For the standard sample, a 1 〇 series of polystyrene Shodex SM-105 was used. Preparation 2: Preparation of Acrylic Copolymer In a 1 L four-neck round bottom flask, 6 g of ethyl acetate, 7 g of butyl acrylate, 8 g of 4-hydroxybutyl acrylate and 20 g of tetrahydro methacrylate were added. The oxime ester was heated to 70 °C. Will be 0. 08 g of azobisisobutyronitrile was dissolved as an initiator in 2 g of ethyl acetate and added to the flask. After 3 hours, 32 〇 g of ethyl acetate was added and the temperature was lowered to 40 °C. After cooling the product, 2 g of 3 isocyanatopropyltriethoxydecane and 0. 01 g DBTDL (dibutyltin dilaurate) was added as a catalyst, followed by a reaction for 12 hours. Nitrogen was supplied at 10 cc/min throughout the duration of the reaction. The resulting acrylic copolymer had a viscosity of 88 〇〇 cps and a solid content of 25%. Further, the obtained acrylic copolymer had a weight average molecular weight of 850,000 g/m 和l and a polydispersity index of 43. Preparation Example 3: Preparation of Acrylic Copolymer In a 1 L four-neck round bottom flask, 6 g of ethyl acetate, 75 g of acrylic acid 20 201211181 butyl ester, 8 g of butyl butyl acrylate and 1 g of decyl propyl group were added. Tetrahydrofurfuryl ester was diluted and heated to 70 °C. Will be jealous. 8 g of azobisisobutyronitrile was dissolved as an initiator in 2 g of ethyl acetate and added to the flask. After 3 hours, 320 g of ethyl acetate was added and the temperature was lowered to 40 °C. After cooling the product, 2 g of 3-isocyanatopropyltriethoxynonane and 0. 01 g DBTDL (dibutyltin dilaurate) was added as a catalyst, followed by a reaction for 12 hours. Nitrogen was supplied at 10 cc/min throughout the duration of the reaction. The resulting acrylic copolymer had a viscosity of 1 〇 5 〇〇 cps and a solid content of 25%. Further, the obtained acrylic copolymer had a weight average molecular weight of 820,000 g/mol and 4. 2 polydispersity index. Preparation Example 4: Preparation of acrylic copolymer An acrylic copolymer was prepared in the same manner as in Production Example 1, except that 10 g of tetrahydrofurfuryl methacrylate was not added. Preparation Example 5: Preparation of acrylic copolymer An acrylic copolymer was prepared in the same manner as in Production Example 3 except that no monoterpene methacrylate was added. Examples 1 to 3 and Comparative Examples According to the weight ratio (parts by weight, solid content) shown in Table 1, each of the internally diluted acid copolymers, the @化剂, and/or the Weitheratin (four) parts by weight of the prepared The ketone was then prepared for _3 () minutes under starvation to prepare a binder composition. 21 201211181 Table 1 Example Comparative Example 1 2 3 1 2 Preparation Example 1 97 - - - Preparation Example 2 Acrylic Copolymer Preparation Example 3 Preparation Example 4 - 98 - 98 97 - Preparation Example 5 - - - - 98 Curing agent 1 0. 5 2 - 0. 5 - Curing agent 2 - - 2 - 2 decane coupling agent 2. 5 ~ - 2. 5 - * Curing Agent 1: Trihydroxymercaptopropane-modified 1 phenyl diisocyanate (TDI adduct type) (AK-75, AekyungChem. Ltd.) * Curing Agent 2: Modified hexamethylene diisocyanate (modified HDI terpolymer) (DN-955, Aekyung Chem• Co., Ltd.) * decane coupling agent: 3 · glycidol Oxypropylpropyl methoxydecane (KBM-403, Shinetsu Chemical Industries Co., Ltd.) The following properties of each of the adhesive compositions were evaluated, and the results are shown in Table 2. Evaluation method Visual inspection of coating liquid Each adhesive composition of the examples and the comparative examples was allowed to stand at room temperature for 1 week, and then its transparency/opacity was visually inspected. 2. Peel strength (gf/25 mm) 180 between the binder composition and the glass substrate was measured in accordance with JIS 2107'. Peel strength. A sample of the adhesive composition was cut into 25 x 100 mm and laminated onto the glass surface. Subsequently, after the adhesive layer and the glass substrate were joined to the upper and lower jigs of the 30 kgf load sensor using a texture analyzer, the load was measured while peeling was performed at a stretching speed of 300 mm/min. 3. Cutting property/reworkability 22 201211181 A polarizer coated with various binder compositions prepared according to the examples and the comparative examples was cut into 400 x 250 mm with a Thomson cutter, and the cross section of the polarizer was observed. The polarizer was bonded to both sides of the glass substrate with a binder composition, and subjected to a pressure of 4 to 5 kg/cm2 to prepare a sample. After leaving the sample at 7 ° C for 6 hours, the residue on the surface of the glass substrate was observed while slowly cooling to room temperature over 1 hour. The evaluation criteria are as follows. 〇 : No adhesive residue on the cross section' and the adhesive is completely removed from the cross section (no adhesive transfer during reprocessing) △. There is a small amount of adhesive residue on the cross-section, and the adhesive is not completely removed from the cross-section (a small amount of adhesive is transferred during reprocessing) X: Obvious adhesive residue, and the adhesive is not completely removed (adhesive during reprocessing) Transfer) 4. Light leakage (transmittance uniformity) The uniformity of light transmittance was evaluated using the same samples as the following durability tests. In order to determine the uniformity of light transmittance, a backlight is used in a dark room to observe light leakage. The coated polarizers (400 x 200 mm) were attached to both sides of the glass substrate (400 x 200 x 15 mm) so that the optical axes of the polarizers overlap each other. Each sample was held at 80 ° C for 250 hours, or under high humidity conditions, i.e., at 60 ° C and 90% relative humidity for 250 hours, and then allowed to stand at room temperature for more than 1 hour before the measurement. The evaluation criteria are as follows. 〇 : It is difficult to visually determine the unevenness of light transmittance △: slight unevenness of light transmittance X: significant unevenness of light transmittance 5. Adhesive field change (mm) 23 201211181 A polarizer coated with each of the adhesive compositions prepared according to the examples and the comparative examples was cut into 1. 5x1. 5 cm, attached to a glass substrate, and allowed to stand at room temperature for 3 days to prepare a sample. A 2 kgf force was applied to the sample for 1 minute using a Universal Test Machine (UTM), and the creep of the adhesive was measured based on the shear distance of the measured sample. 6. Durability A polarizer (10 mm x 175 mm) coated with the adhesive composition prepared according to the examples and the comparative examples was attached to both sides of the glass substrate by applying a pressure of 4 to 5 kg/cm 2 to the polarizer. To prepare a sample. In this case, the preparation of the sample is carried out in a clean room to prevent foaming or foreign matter on the sample. The prepared sample was placed at 8 (TC for 500 hours, and bubble generation or delamination of the sample was observed to evaluate heat resistance. To evaluate heat resistance/moisture resistance, the sample was placed at 6 Torr and 90% relative humidity. 500 hours, and observation of bubble generation or delamination. Immediately before the evaluation, the sample was allowed to stand at room temperature for an hour, and observed with a naked eye or a microscope. The evaluation criteria are as follows. No bubbles or delamination, △: slight blistering or delamination, X: significant blistering or delamination Table 2 Example _ Comparative evaluation project 1 2 3 1 2 Appearance of coating liquid Transparent transparent transparent transparent peel strength ( Gf/25mm) 280 220 330 500 550 Cutting performance/reworkability 〇〇〇〇△ Light leakage (light transmittance uniformity) 〇0 〇XX Adhesive creep (mm) 0. 162 0. 173 0. 183 0. 384 0. 409 Durability Heat resistance 〇〇〇Δ Δ High moisture resistance 〇〇〇Δ Λ 24 201211181 It can be seen from Table 2 that the adhesive composition of the embodiment of the present invention exhibits excellent durability, remarkable adhesive strength and high peel strength. While preventing light leakage (see Examples 1 to 3). The binder composition including the acrylic copolymer having a furan group in the main chain showed excellent effects in reducing light leakage and at the same time improving heat resistance (Examples 1 and 3, Comparative Examples 1 and 2). Although a few embodiments have been disclosed herein, it will be understood by those skilled in the art Therefore, the scope of the invention should be limited only by the scope of the appended claims and their equivalents. I: Simple description of the figure 3 (none) [Explanation of main component symbols] (None) 25